Chapter 0719: The Loss of Mystic Sand
Apart from Mystic Sand, the only other entities that could be dispatched were the nine Ghost Faces under his command. They also possessed independent thinking abilities, and their individual strength wasn't bad either. Sending them through the Teleportation Array to the other side might assist him in determining the situation there.
However, compared to Mystic Sand, Ghost Faces did not have any distinct advantages. The transport capacity of the Teleportation Array was limited, and it could only send one Ghost Face at a time. At best, a single Ghost Face's strength was at the First Level of Nascent Soul Stage. If there were stronger existences or multiple entities of comparable strength on the other side of the array, then dispatching a Ghost Face would be akin to serving oneself up on a platter; not to mention assisting him in reconnoitering the situation, surviving might also be problematic.